Been awhile ,so might not have it quite right.Not sure but you could use the stick for forward and reverse and turn left or right.Or you could use the pedals both down at top same time forward.
Then to counterotate use your heal on one and the toe top on the other which ever direction you wanted to turn.Both down same time with heal was reverse.
The stick in the middle had a button on the top which was the 2-speed i think.Like i said it has been awhile.I also think the 225 weighted in around 52,000 to 55,000 pounds.It was make only by Cat then. 30" pads or 32".I think it was about 11' 6" wide to the outside of the pads.
They was heavy so when in mud they was hard turning,especially if you was trying to counterotate in the mud.The travel was the weakest part of the machine it seem like to me.But i thought they dug pretty good.It would handle the 72" ditch cleaning bucket i had on it good,even in muddy clay with it heaped to the top,and reaching out all the ways.:usa